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| author | Michael Niedermayer <michael@niedermayer.cc> | 2019-10-01 00:43:03 +0200 |
|---|---|---|
| committer | Michael Niedermayer <michael@niedermayer.cc> | 2020-07-02 19:55:09 +0200 |
| commit | 9645c0b322c108a6b3a2d437fae10a2529eb3f7e (patch) | |
| tree | d5bf0a2f21edcec27822bece70ff28d409b63359 | |
| parent | 71c228d2b8c93857a104c034937b1350d1959b3f (diff) | |
| download | ffmpeg-9645c0b322c108a6b3a2d437fae10a2529eb3f7e.tar.gz | |
avcodec/dstdec: Use get_ur_golomb_jpegls()
Fixes: shift exponent -4 is negative
Fixes: 17793/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_DST_fuzzer-5766088435957760
Fixes: 18989/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_DST_fuzzer-5175008116867072
Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit a76690c02b4fd12d7fac6f753af8bad72c82d55c)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
| -rw-r--r-- | libavcodec/dstdec.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/libavcodec/dstdec.c b/libavcodec/dstdec.c index daf906ba0c..c548174331 100644 --- a/libavcodec/dstdec.c +++ b/libavcodec/dstdec.c @@ -120,7 +120,7 @@ static int read_map(GetBitContext *gb, Table *t, unsigned int map[DST_MAX_CHANNE static av_always_inline int get_sr_golomb_dst(GetBitContext *gb, unsigned int k) { - int v = get_ur_golomb(gb, k, get_bits_left(gb), 0); + int v = get_ur_golomb_jpegls(gb, k, get_bits_left(gb), 0); if (v && get_bits1(gb)) v = -v; return v; |